Resource debug flag

Its common to replace command: [/bin/bash, -c, 'while true; do sleep 1000; done'] to debug a container that's misbehaving.

It would be great if we extended kolla-kubernetes resource create .... to have a -c <containername> --debug flag that would add that for us so users don't have to manually edit templates to handle that very common case.

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or maybe --debug-container=containername -- kfox1111

Maybe we can control this further with the CLI. In other words, the run command can be overriden by a cli command + args? Kubenetes' pod templates add a nice abstraction around the Dockerfile that keeps it readable. - rhallisey